Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6875098 | Electroplated grinding wheel and its production equipment and method | Tsutomu Takahashi, Hanako Hata | 2005-04-05 |
| 6419574 | Abrasive tool with metal binder phase | Tsutomu Takahashi, Tetsuji Yamashita, Hanako Hata | 2002-07-16 |